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fix 971: Server always downgrades TLS to v1.0 #972

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fix 971: Server always downgrades TLS to v1.0 #972

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2 changes: 1 addition & 1 deletion lib/tls.js
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Original file line number Diff line number Diff line change
Expand Up @@ -1087,7 +1087,7 @@ tls.handleClientHello = function(c, record, length) {
} else {
// use highest compatible minor version
var version;
for(var i = 1; i < tls.SupportedVersions.length; ++i) {
for(var i = 0; i < tls.SupportedVersions.length; ++i) {
version = tls.SupportedVersions[i];
if(version.minor <= msg.version.minor) {
break;
Expand Down
192 changes: 139 additions & 53 deletions tests/unit/tls.js
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,61 @@ require('../../lib/util');

(function() {
describe('tls', function() {

function createCertificate(cn, data) {
var keys = forge.pki.rsa.generateKeyPair(512);
var cert = forge.pki.createCertificate();
cert.publicKey = keys.publicKey;
cert.serialNumber = '01';
cert.validity.notBefore = new Date();
cert.validity.notAfter = new Date();
cert.validity.notAfter.setFullYear(
cert.validity.notBefore.getFullYear() + 1);
var attrs = [{
name: 'commonName',
value: cn
}, {
name: 'countryName',
value: 'US'
}, {
shortName: 'ST',
value: 'Virginia'
}, {
name: 'localityName',
value: 'Blacksburg'
}, {
name: 'organizationName',
value: 'Test'
}, {
shortName: 'OU',
value: 'Test'
}];
cert.setSubject(attrs);
cert.setIssuer(attrs);
cert.setExtensions([{
name: 'basicConstraints',
cA: true
}, {
name: 'keyUsage',
keyCertSign: true,
digitalSignature: true,
nonRepudiation: true,
keyEncipherment: true,
dataEncipherment: true
}, {
name: 'subjectAltName',
altNames: [{
type: 6, // URI
value: 'https://myuri.com/webid#me'
}]
}]);
cert.sign(keys.privateKey);
data[cn] = {
cert: forge.pki.certificateToPem(cert),
privateKey: forge.pki.privateKeyToPem(keys.privateKey)
};
}

it('should test TLS 1.0 PRF', function() {
// Note: This test vector is originally from:
// http://www.imc.org/ietf-tls/mail-archive/msg01589.html
Expand Down Expand Up @@ -117,59 +172,90 @@ require('../../lib/util');

end.client.handshake();

function createCertificate(cn, data) {
var keys = forge.pki.rsa.generateKeyPair(512);
var cert = forge.pki.createCertificate();
cert.publicKey = keys.publicKey;
cert.serialNumber = '01';
cert.validity.notBefore = new Date();
cert.validity.notAfter = new Date();
cert.validity.notAfter.setFullYear(
cert.validity.notBefore.getFullYear() + 1);
var attrs = [{
name: 'commonName',
value: cn
}, {
name: 'countryName',
value: 'US'
}, {
shortName: 'ST',
value: 'Virginia'
}, {
name: 'localityName',
value: 'Blacksburg'
}, {
name: 'organizationName',
value: 'Test'
}, {
shortName: 'OU',
value: 'Test'
}];
cert.setSubject(attrs);
cert.setIssuer(attrs);
cert.setExtensions([{
name: 'basicConstraints',
cA: true
}, {
name: 'keyUsage',
keyCertSign: true,
digitalSignature: true,
nonRepudiation: true,
keyEncipherment: true,
dataEncipherment: true
}, {
name: 'subjectAltName',
altNames: [{
type: 6, // URI
value: 'https://myuri.com/webid#me'
}]
}]);
cert.sign(keys.privateKey);
data[cn] = {
cert: forge.pki.certificateToPem(cert),
privateKey: forge.pki.privateKeyToPem(keys.privateKey)
};
}
});

it('should use TLS v1.1 by default and not downgrade to 1.0 if client requested 1.1', function(done) {
/* This test covers a bug in which TLS server upon reception ClientHello with TLS v1.1
downgraded TLS to 1.0 for no reason.
*/
var end = {};
var data = {};

createCertificate('server', data);
createCertificate('client', data);
data.client.connection = {};
data.server.connection = {};

end.client = forge.tls.createConnection({
server: false,
caStore: [data.server.cert],
sessionCache: {},
cipherSuites: [
forge.tls.CipherSuites.TLS_RSA_WITH_AES_128_CBC_SHA,
forge.tls.CipherSuites.TLS_RSA_WITH_AES_256_CBC_SHA],
virtualHost: 'server',
verify: function(c, verified, depth, certs) {
return true;
},
connected: function(c) {
data.client.version = c.version;
},
getCertificate: function(c, hint) {
return data.client.cert;
},
getPrivateKey: function(c, cert) {
return data.client.privateKey;
},
tlsDataReady: function(c) {
end.server.process(c.tlsData.getBytes());
},
dataReady: function(c) {
},
closed: function(c) {
},
error: function(c, error) {
ASSERT.equal(error.message, undefined);
}
});

end.server = forge.tls.createConnection({
server: true,
caStore: [data.client.cert],
sessionCache: {},
cipherSuites: [
forge.tls.CipherSuites.TLS_RSA_WITH_AES_128_CBC_SHA,
forge.tls.CipherSuites.TLS_RSA_WITH_AES_256_CBC_SHA],
connected: function(c) {
data.server.version = c.version;
c.close();
},
verifyClient: true,
verify: function(c, verified, depth, certs) {
return true;
},
getCertificate: function(c, hint) {
return data.server.cert;
},
getPrivateKey: function(c, cert) {
return data.server.privateKey;
},
tlsDataReady: function(c) {
end.client.process(c.tlsData.getBytes());
},
dataReady: function(c) {
},
closed: function(c) {
ASSERT.deepEqual(data.client.version, forge.tls.Versions.TLS_1_1);
ASSERT.deepEqual(data.server.version, forge.tls.Versions.TLS_1_1);
done();
},
error: function(c, error) {
ASSERT.equal(error.message, undefined);
}
});

end.client.handshake();

});
});
})();